APA (7th ed.) Citation

Hale, M. E., Jr. (1976). A monograph of the lichen genus Pseudoparmelia Lynge (Parmeliaceae). Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Hale, Mason E., Jr. A Monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae). City of Washington: Smithsonian Institution Press, 1976.

MLA (9th ed.) Citation

Hale, Mason E., Jr. A Monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae). Smithsonian Institution Press, 1976.